Cooking pot



July 3,' 1928.

v 1,675,640 c. CHARLIER ET AL cooxmc POT 926 3Sheets-Sheet 1 flaws/afar. camife c aafec 9%,); may:

July 3, 1928.

C. CHARLIER ET AL COOKING POT Filed Nov. 18, 1926 3 Sheets-Sheet 2 c. CHARLIER ET AL COOKING POT Filed Nov. 1a, 1926 a Sheets-Sheet 6' Patented July 3, 1928.

1 1,675,640 UNITED STATES PATENT OFFICE.

GAMILLE CHABLIER AN D ABBAHAM- EBBERA, 0]! BRUSSELS, BELGIUM.

cooxmc ror.

Application filed November 18, 1926, Serial No.1 49,158, and in Belgium December 8,

Heretofore various kinds of pots, pans and digesters have-been used in a general way for domestic purposes, the cover of said pots being arranged inwardly and tightened from the inside towards the outside by means of an outwardly arranged locking mechanism so as to secure a tight joint on. its entire periphery by the boiling pressure and thus allow quicker, more complete and better cooking.

Our present invention has for its object to provide a cooln'ng pot of this type wherein the locking system of the cover 1s reduced tothe greatest simplicity, whereby the outer appearance of the pot will not be affected and at the same time a perfect closing secured.

A further object of our invention is to provide a cooking pot of the type described, wherein'the cover has its periphery provided with a depressioncooperating with the slightly bent rimof the opening of the pot so as to secure a completely tight joint at the same time perm-ittin of the ova shaped cover being quickly an rather automaticall put in place.

A still further object of our invention is V to provide such a cooking pot, in which the cover is slightly arched inwardly, so that the pressure of steam will be deflected towards the rim of the cover (in order to enhance 'theltightness of the joint) whilst condensed water will flow towards the centre of the cover and thus be prevented from being inserted into the joint or discharged therethrough.

In the accompanying drawings we. have illustrated various forms of the invention:

Fig. 1 is a plan view of the closed cooking pot.

Fig. 2 is a vertical axial section thereof. Figs. 3 and 4 are similar views of an alternate form.

Fig. 5 is a vertical section on axis of the cooking pot and Fig. 6' is a vertical section on the small axis of another form.

the large The cooking pot I made of any desired shape, has an oval opening, the rim 2 of which is slightly bent inwardly as shown in Fig. 2. Combined with th s cover .3 also made oval-in she and somewhat lar er than the o eni'ng o the pot. In cross and lon' tudina section said cover is ofthe shape s own in Fig. 2, that is its cen- 'tralportion is slightly archedior bulged the end 6 o the cover.

. said cover fir provided with a pro ection for the same purpot is a groove 7 corresponding exactly to the rim 2 of the opening of the pot. It will be seen that as the cover is placed inside the pot,

it will be suilicient upon raising the same by its handle 8 to bent rim 2 for its normal press it slightly against the osition, t e rim 2 overlapping Along the small axis of the cover the rtion 4 of the latter carries two diametrically opposed ivot-pins 9 for two locking parts 10 provide with thumb-pieces l1 and which when turned into the positions shown, will firmly apply the portion 6 of the cover against the rim 2 of the pot. Owing to the bulged form of the central portion of the cover, the steam generated within the pot will be deflected towards-the joint 25-6, where it will act joint.

It will be seen'that condensed steam will be collected at the lowermost? part of the cover and have no tendency to be forced into the joint The cover will be removed in the usual way by graspin the same at the handle, releasing the loc ing parts 10., and turning the cover half around and inclining it at the same time about its small axis- The cover will be inserted into the pot by a reverse manipulation.

The cover is safety-.valve,'alead-fuse, an alarm-pipe and the like.-

preferably provided with a aving1 the cover at once in The rim 2 of the cover, is slightly hi her than the upper face of the portion 4 o the cover, so that the books 10 will force the cover suflicientl if they are engaged to hold pose.

that with the average thicknesses and dimensions admissible for domestic use, said locking device comprising pivoted hooks or levers is not adapted to secure perfect tightness of the joint owing to the clearance which will soon be formed at the pivot-pin.

The locking system shown in Figs. 3 and 4. serves to avoid these detects; the same y. Said rim 2 may also be However in practice it has been found the section of the opening 16, w

felt leaf placed upon the peripherical rim of the cover and held in secured to the cover.

The cover, after bei place by two points put'into position as usual and held by its handle 8, will be tightened against the rim of the pot by a simple mani ulation of the screw 19; it will be sufliclent to previously engage the n shanks of the pins 17 entirely mto the openor a head 27;

ings 16, the rods 12 being placed into. the

'tions shown. The eflect of the tightenmg of the screws 19 is to force the rods 12 upon-the rim of the pot and at the same time upon the concave portion of the cover,

thus'forming a rigid undistortable closure and locking.

The rods 12 are not pivotable about the 17; in order to remove the same, it will.

ms be suflicient, after having loosened the screws 19, to push the rods 12 towards the centre of the cover so as to move the pins into the openin 15.

It will'be obvious-that the same result may be obtained by avoiding the bent portions of the rods 12, whereby t e total pressure produced by the screws 19 will be exerted upon thepins 17.

In the form shown in Figs. 5 and 6, the

handle is formed for instance of a metal blade, both ends of which are soldered or riveted to the central rtion of the cover, said blade bein curv as shown in F 6. At a certain height, the two branches 6 the handle are braced by a short metal blade 24 which is firmly secured so as to form a free space between said blade and the upper face of the cover. The locking of the cover is obtainedby means of a strong bar 22,

referabl arched as shown in Fig. 5; said r willlie inserted into the space 25 and the ends thereof will rest on the upper rim of the pot. Through one end of the bar 22 extends a screw 23 endingv into wings Itwillbeseenthatthebarbei inserted into the free space 25, the tightening of the screw 23 resting on the rim 2, will determine a progressive and uniform tightening of the cover against the lower face of the rim,2 of the pot. The unlocking will be effected by simply loosening said screw, whereby the bar 22 as well as the cover may be removed.

The height of the space 25 is preferably such that-the bar 22 may be inserted without trouble, at the same time requiring a simple turn of the screw only to lock the joint between the cover and run 2.

Having now fully described our said in-. vention, what we claim and desire to secure by Letters Patent, is: a

' 1. In a cooking. pot,-the combination with 'the pot and an; inwardly arched-cover of oval shape intended to be inserted into the pot and tightened upwardly against the upper rim or flange o the pot, of a flange .formed around the opening of the 0t and slightly bent downwardly and inwar y, and an annular groove formed in the rim of the cover, the outer wall of the groove being inclined downwardly, the flange fitting in the ve with the edge thereof engaging the ownwardly inclined wall.

2. In a cooking pot, the combination with the pot and an inwardly arched cover of oval shape intended to be inserted into the pot, and tightened upwardly against the upper rim or flange o the pot, of a flange formed around the opening of the'pot and slightly bent downwardly and inwardly, an an annular groove formed in the rim of the cover, the outer wall of the groove being inclined downwardly, the flange fitting in the groove with the thereof engaging the downwardly incline 'wall, the arch of the cover extendi substantiall throughout the full area t ereof inwar y of said oove, whereby the interior pressure mciant to the heating of the contents of the pot serves to tighten the cover in place in direct protection to such pressure.

3. In a cooking pot, the combination with the pot and an inwardly arched cover of oval shape intended to be inserted into the pot and tightened upwardly against the upr rim or flan of the pot of a flange ormed aroundt e opening 0 the t and slightly bent downwardly and inwa ly, and an annular groove formed in the rim of the cover, the outer wall of the groove being illiclined downwardly, the flange fitting in -t e ve with the edge vthereof eigaging the ownwardly inclined wall, and means whereby the cover may be securedagainst inward movement relative to the cooking pot. V 4

-In testimony whereof we have hereunto set ourh'ands. 'CAMILLE CHARLIER.

- ABRAHAM ERRERA. 

